Publication Date:
2006-02-14
Description:
Stromatolites, layered sedimentary rock structures produced by communities of microorganisms, constitute the most abundant early evidence of life on Earth. Microbial mats, which are found most frequently in hypersaline marine or hot spring environments, serve as useful modern analogs of stromatolitic communities. Biochemical studies of mats were conducted to assist in the interpretations of stromatolites. The data suggest that salinity effects are insufficient by themselves to cause the C-13 differences observed betwwen Precambrain stromatolites and modern microbial mats.
Keywords:
SPACE BIOLOGY
Type:
NASA, Washington Second Symposium on Chemical Evolution and the Origin and Evolution of Life; p 100
Format:
text
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